Question

Oblicz :
a) 1/6 + 2/5 = ...
b) 8/9 - 5/6 = ...
c) 1 cala 1/5 + 8 calych 1/7 = ...
d) 4 cale 7/10 - 2 cale 1/3 = ...
e) 4 cale 1/5 - 7/10 = ...
f) 6 calych 1/8 - 2 cale 3/4 = ...
g) 10 calych 2/3 - 6 calych 7/9 = ...
h) 9 calych 3/8 - 2 cale 5/6 = ...
POMOCYY !!! DAJE NAJ ! ;*

Answer 1

a)17/30

b)1/18

c)47/35

d)71/30

e)3,5

f)27/8

g)35/9

h)157/24

Answer 2

a)

1/6+2/5=5/30+12/30=17/30

b)

8/9-5/6=16/18-15-18=1/18

c)

1 1/5+8 1/7=1  7/35+8 5/35=9  12/35

d)

4  7/10-2  1/3=4  21/30-2  10/30=2  11/30

e)

4  1/5-7/10=4  2/10-7/10=3  12/10-7/10=3  5/10=3 1/2

f)

6 1/8-2 3/4=6  1/8-2  6/8=5  9/8-2  6/8=3  3/8

g)

10  2/3-6  7/9=10  6/9-6  7/9=9  15/9- 6  7/9=3  8/9

h)

9  3/8 - 2  5/6=9  9/24 - 2 20/24=8 33/24-2  20/24=6  13/24